Filing-machine



F. E. BIDDLE.

F'ILING MACHINE.

APPLICATION FILED JUNE 30. I919.

Patented Nov. 1, 1921.

UNITED STATES FRANK E. RIDDLE, OF ELKHART, INDIANA.

FILING-MACHINE.

Specification of Letters Patent.

Patented Nov. 1, 1921.

Application filed June 30, 1919. Serial No. 307,792.

To all whom it may concern:

Be it known that I, FRANK E. BIDDLE, a citizen of the United States, and a resident of the city of Elkhart, county of Elkhart, Indiana, have invented certain new and useful Improvements in Filing-Machines, of which the following is a specification.

This invention relates to filing machines for filing metal, and especially to bench filing machines.

An object of my invention is the production of a self-contained and compact filing machine which is especially suitable for bench work. Another object is the production of a filing machine having improved adjustment and clamping mechanism for securing the file to the frame which reciprocates for effecting reciprocatory motion of the file. Other objects of my invention are mentioned and described herein.

The preferred embodiment of my invention is well illustrated in the accompanying drawing in which Figure 1 is a side elevation of the whole machine; Fig. 2 is an end elevation of the machine; Fig. 3 is a section taken on the line 3-3 of Fig. 2; Fig. 4; is a section taken on the line 1 of Fig. 1; Fig. 5 is an enlarged plan view of the file securing devices; Fig. 6 is a section taken on the line 66 of Fig. 5; and Fig. 7 is a section taken on the line 77 of Fig. 2.

Similar numerals of reference indicate like members and parts of members throughout the several views on the drawing.

Referring to the drawing, the numeral 1 indicates a frame member having a shaft bearing portion 2 in which the shaft 3 for driving the machine may be revolubly mounted, the pulley 4 being fixed on one end of said shaft and adapted to receive power by belt or otherwise from any suitable source. The opposite end of the driving shaft 3 is provided with a disk crank 5 for effecting a reciprocatory motion of the file carrying members, as hereinafter described.

The numeral 6 indicates a reciprocatory frame provided with a cross-head member 7 which is reciprocally mounted in the guides 1', 1' of the frame 1, a link 8 connecting said cross-head with the crank disk 5 for imparting a 'reciprocatory motion to said cross-head and frame when the shaft 3 is rotated. The numeral 9 indicates a tiltable work holding table pivotally mounted in the frame on pins 10, 10 which may be opposit y d p ed nd se u ed in y uitable manner in said frame, said table being suitably apertured to permit of the passage of a file, which aperture is not shown as it is well known in the art.

The numeral 14 indicates an upright post or column adjustably secured to the frame 6 by a screw clamp 15, said post carrying a swinging and vertically adjustable arm 16 which is secured thereto by the screw clamp 17 which may be similar in construction to the clamp 15.

The numeral 18 indicates generally a top file clamping box which is provided with the longitudinal tongue 19 slidably engaging in a slot 19' formed in the portion 16 of the arm 16 to enable adjustment of the box 18 longitudinally of said arm. For maintaining the adjustment of the box 18 a thumb screw 20 is provided which screw engages in the wall ,of the box 18 and is movable longitudinally within an elongated slot 20 formed in the arm portion 16, said screw having a clamping collar or flange 20 which rigidly engages the face of the portion 16' on each side of the slot 20 when the screw 20 is inwardly adjusted.

The numeral 23 indicates generally the lower file clamping box carried upon the outer end of the frame element 6, the top box 18 being adjustable horizontally on the arm 16, as described, to eflfect a vertical alinement of the two boxes. The top box 18 is provided with a file clamping block 21 pivotally mounted at its upper end on pin 22, the latter being arranged transversely of and in the box walls. An end plate 24 may be rigidly fastened to the end of the box 18 by a plurality of screws 25 and clamping or set screws 26 and 27 are threaded into said end plate, one above the other, the points whereof project to the interior of said box. A third screw 28 is threaded into the rear wall of the box 18. the point of said screw projecting to the box interior and being adapted to engage the rear face of the block 21 intermediate its extremities for effecting tiltable adjustment of the latter to accommodate the face of the block to the face of the file, the latter of which is adapted to be clamped between said block and the screws 26 and 27.

The lower box 23 is provided with a file clamping block 21' tiltably mounted on a pin 22 fixed in and transversely of the walls of the box substantially similar to the form and mounting of the block 21. of box 18,

said box having its end closed by the plate 24: rigidly fastened thereto by a plurality of screws 25. The clamping screws 26 and 27 are threaded into the plate 24, and the screw 28 is threaded into the rear wall of the box 23, which screws are adapted to function the same as screws 26, 27 and 28, respectively, carried by box 18, as hereinbefore described.

In use, the upper end of the file is secured within the box 18 and the lower end thereof is secured within the box 23, both boxes being reciprocally actuated by the frame 6, as heretofore mentioned. To secure a file in position the set screws 27 and 26 are re with the front face of the blocks 21. Thereupon, the adjustment of the block 21 is effected by. the set screw 28, in both boxes 18 and 23, to conform to the plane and contour of the file tang, and thereafter the setscrews 26vand 27 are screwed into engagement with the file to fasten it in position. The set screws 26 and 27 may, and preferably do, lie in planes below that of the pivot pin 22 in order that the greater efficiency may result,

I claim:

1. In a filing machine, a reciprocatory frame; a post on said frame and vertically adjustable thereon; an arm projecting laterally from saidpost; and file clamping mechanism carried by said arm, said clamping mechanism comprising a holder box; a tiltably adjustable file block mounted in said box; clamping means carried by said box and positioned therein to engage the body of the file for clamping it against the block.

. 2. In a filing machine, a reciprocatory frame; a post on said frame and vertically adjustable thereon; an arm projecting laterally from said post; and file clamping mechanism carried by said arm, said clamping mechanism comprising a tilting block pivoted adjacent its upper end within said box; a set screw located to bear against the rear face of said block below the pivotal 4:. In a filing machine, the combination of reciprocatory clamping mechanism adapted to engage both ends of the file, the file tang clamp comprising a holder box, a tilting block pivoted adjacent its upper end and within said box, a set and adjustment screw located to bear, against the rear wall of said block below the pivotal point thereof, a plurality of set screws carried by the box and located to engage a file tang one of said screws being positioned below the plane of the pivotal point of said block, and means for imparting a reciprocatory motion to the clamping mechanism as a whole.

5. In a filing machine, the combination of reciprocatory clamping mechanism adapted to engage both ends of the file, one ofthe tang clamping members comprising an arm, a clamping device carrier adjustably mounted onsaid arm and adapted for ad justment in a horizontal plane, and file tang clamping devices mounted in said carrier member.

6. In a filing machine, the combination of rcciprocatory clamping mechanism adapted to engage both ends of'the file, the upper file tang clamping mechanism comprising an arm, a clamping device carrier member, a complementary tongue and groove connection between said carrier and said arm, and means for adjusting said carrier on said tongue and groove connection.

In testimony whereof I.have hereunto a'fiixed my signature this 21st day of June,

f FRANK E. BIDDLE. 

